Found this earlier this week.
MIXING LIGHT ARGENT TEXTURED FINISH
MUSCLECAR REVIEW, JUNE 1991
Chrysler used two shades of this highly textured Argent paint-light and medium-and they were the only manufacturer that used them at all. The Light Textured Argent, part number DX 8555, is obsolete. The Medium Textured Argent, part number DNA 8933, can sometimes be found at larger, older Ditzler dealers. Last used in the mid 1970's, it is now all but obsolete. Older Ditzler dealers that have remaining stock can mix this paint for you, but it can also be mixed from currently available paints. Here's how.
LIGHT ARGENT TEXTURED
Ingredients for 1 pint (double for quart)
1/2 ounce DX 204- Radiance Silver
1/2 ounce DDL 8568- Non Smudge Aluminum/aluminum base
3 1/2 ounces DCA 468 High Performance Clear
Add 4 ounces of top grade lacquer thinner with drying time according to temperature. Mix thoroughly and pour in 1 pint touch up gun. Use 10 clean 1/4" ball bearings in paint cup to keep the paint mixed. Use three light coats over an existing finish or four to six coats over unfinished parts. This paint runs VERY easily, allow 5-10 minutes between coats.
MEDIUM ARGENT TEXTURED
The steps are exactly as above, but add black lacquer to darken. Start with six drops per pint and stir thoroughly, then spray a sample to compare to the original finish. Add a drop at a time until you achieve the correct tint.
Spray these paints at 55-60 lbs. keeping the gun 18-30 inches from the surface. Frequently agitate the mixture to maintain uniform consistency because the Radiance Silver is heavy and will settle out quickly.